20 Installation (for qualified installers only)
Travis Industries 4040708 100-01160
Vertical Terminations with 0, 2, or 4 45° Offsets using 6-5/8” Dia. Vent
• Use 6-5/8” diameter co-axial vent
• A Maximum of Four 45° Elbows May be Used
• 10' Minimum System Height (with or without offsets)
• 40' Maximum System Height
• 12’ 8” Maximum Horizontal Offset
Offset Length Hor. Offset Vert. Rise
None 5" 1'
1' Section 1' 1' 7"
2' Section 1' 9" 2' 4"
3' Section 2' 5" 3'
4' Section 3' 2" 3' 8"
Offset
Length
Horizontal
Offset
Vertical
Rise
• The termination must fall within the shaded area shown in the chart. Use the indicated restrictor position.
Restrictor
Position # 1
5 feet
10 feet
(min.)
15 feet
20 feet
25 feet
30 feet
0 feet
0 feet
5 feet
12' 8"
(max)
5 feet
0 feet
0 feet
5 feet
12' 8"
(max)
10 feet
(min.)
15 feet
20 feet
25 feet
30 feet
NOTE:
Restrictor positions are based upon
lab tests. The ideal restrictor position
may vary slightly, especially when the
termination is near the demarkation
line.
Four 45° Offsets
5 feet
10 feet
(min.)
15 feet
20 feet
25 feet
30 feet
0 feet
40' (max)
0 feet
5 feet
12' 8"
(max)
5 feet
0 feet
0 feet
Restrictor
Position # 1
Restrictor
Position # 7
10 feet
(min.)
15 feet
20 feet
30 feet
40' (max)
Zero or Two 45° Offsets
5 feet
NOTE:
The maximum offset
lengths, combined, is
four 4' sections.
NOTE:
Restrictor positions are based upon lab tests. The
ideal restrictor position may vary slightly, especially
when the termination is near the demarkation line.
25 feet
10 feet
10 feet
12' 8"
(max)
10 feet
NOTE:
The maximum offset lengths,
combined, is four 4' sections.
10 feet
35 feet35 feet
40' (max)
40' (max)
Restrictor
Position # 7
35 feet35 feet
